Submission #786847

#	Time	Username	Problem	Language	Result	Execution time	Memory
786847		mindiyak	Shortcut (IOI16_shortcut)	C++14	0 / 100	1 ms	224 KiB

shortcut

#include "shortcut.h"
#include <iostream>
#include <algorithm>

#define ll long long

using namespace std;

long long find_shortcut(int n, std::vector<int> l, std::vector<int> d, int c)
{
    vector<ll>S(n,0);
    for(int i=0;i<n-1;i++){
        S[i+1] = S[i] + l[i];
    }
    vector<int>depth(n,0);
    vector<int>start(n,0);
    vector<pair<ll,pair<int,int>>> diameters;

    depth[0] = d[0];
    for(int i=1;i<n;i++){
        depth[i] = max(l[i-1]+depth[i-1],d[i]);
        if((l[i-1]+depth[i-1]) < d[i]){
            start[i] = i;
        }
        else{
            start[i] = start[i-1];
        }
        
        diameters.push_back({l[i-1]+depth[i-1]+d[i],{start[i-1],i}});
    }

    sort(diameters.rbegin(),diameters.rend());

    ll max_diameter = diameters[0].first;

    max_diameter = min(diameters[0].first - (S[diameters[0].second.second] - S[diameters[0].second.first]) + c,max_diameter);

    max_diameter = max(max_diameter,diameters[1].first);

    return max_diameter;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 14
• Subtask 3: 0 / 8
• Subtask 4: 0 / 7
• Subtask 5: 0 / 33
• Subtask 6: 0 / 22
• Subtask 7: 0 / 4
• Subtask 8: 0 / 3